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Reproduction

From the earliest genetic decisions to the final protocols for calving, discover the best information to improve your herd’s reproductive performance.

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The ability to focus intently is often a worthwhile and productive tool for one seeking improvement. However, when it comes to genetic selection – whether that focus is on calving ease or weaning weight – that intense focus can often have unintended, and sometimes disastrous consequences.

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Inbreeding is defined as the mating of related individuals. In the broadest sense, all animals within a certain breed are somewhat related.

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283 days. Nine months. Three trimesters. Those are the numbers we tend to think of when we think of a cow’s pregnancy. But what if I told you there was a more important number? The number of “bad days” a cow has during her pregnancy.

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The thermometer is nearing 100; the heat index is even higher than that; and we notice that our cattle are suffering the effects.

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Research at South Dakota State University has examined the effect cow nutrition has on meat quality of their offspring.

SDSU Extension meat specialist Amanda Blair and graduate students fed 140 cows either a positive energy diet or a negative energy diet during mid-gestation.

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Imagine buying a bull with a birth weight EPD (expected progeny difference) of +1.0, only to bring him home and find out he was actually a +9.6.

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